linux-kernel - Re: [PATCH 1/2] dt-bindings: phy: Add Freescale i.MX8qm Mixel LVDS PHY binding

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Date:   Mon, 20 Jun 2022 09:35:36 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Liu Ying <victor.liu@....com>, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     kishon@...com, vkoul@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com
Subject: Re: [PATCH 1/2] dt-bindings: phy: Add Freescale i.MX8qm Mixel LVDS
 PHY binding

On 20/06/2022 05:06, Liu Ying wrote:
> On Sun, 2022-06-19 at 14:11 +0200, Krzysztof Kozlowski wrote:
>> On 18/06/2022 11:22, Liu Ying wrote:
>>> This patch adds bindings for Mixel LVDS PHY found on
>>> Freescale i.MX8qm SoC.
>>>
>>> Signed-off-by: Liu Ying <victor.liu@....com>
>>> ---
>>>  .../bindings/phy/mixel,lvds-phy.yaml          | 64
>>> +++++++++++++++++++
>>>  1 file changed, 64 insertions(+)
>>>  create mode 100644
>>> Documentation/devicetree/bindings/phy/mixel,lvds-phy.yaml
>>
>>> diff --git a/Documentation/devicetree/bindings/phy/mixel,lvds-
>>> phy.yaml b/Documentation/devicetree/bindings/phy/mixel,lvds-
>>> phy.yaml
>>> new file mode 100644
>>> index 000000000000..de964ffb9356
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/phy/mixel,lvds-phy.yaml
>>> @@ -0,0 +1,64 @@
>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>> +%YAML 1.2
>>> +---
>>> +$id: 
>>> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevicetree.org%2Fschemas%2Fphy%2Fmixel%2Clvds-phy.yaml%23&amp;data=05%7C01%7Cvictor.liu%40nxp.com%7Cb68f9012ddcc44bc10cd08da51ece7f7%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637912375188731290%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=MdBILPYmfYeWeCXXNxy1mu1NcU0b6EW3QztYc294dd4%3D&amp;reserved=0
>>> +$schema: 
>>> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevicetree.org%2Fmeta-schemas%2Fcore.yaml%23&amp;data=05%7C01%7Cvictor.liu%40nxp.com%7Cb68f9012ddcc44bc10cd08da51ece7f7%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637912375188731290%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=MhHwku8rbDLAZAQh1T9CGFULMkk5MaNoj3LQnQJ6VXM%3D&amp;reserved=0
>>> +
>>> +title: Mixel LVDS PHY for Freescale i.MX8qm SoC
>>
>> If Mixel is a vendor, it needs it's vendor prefix documented and used
>> in
>> compatible. Filename should match compatible. If it is not a vendor,
>> then filename should be "fsl,imx8qm-lvds-phy.yaml"
> 
> Mixel is a vendor. I'll document the vendor prefix and set
> 'fsl,imx8qm-lvds-phy' and 'mixel,lvds-phy' as compatible's enum.
> I'll keep the filename as-is.
mixel,lvds-phy is not a good compatible (and filename) because it is not
specific about component version. Please use specific compatibles only
thus also specific filename (filename should match first compatible).

Best regards,
Krzysztof